Methods and apparatus for mixing powdered samples
US7134459B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2004 |
| Grant date | Nov 14, 2006 |
| Priority date | — |
| Expiry date | Nov 21, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/23
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method for preparing a mixed powder sample by mixing two or more different powders comprising transferring a quantity of a first powder to a mixing vessel and transferring a quantity of a second powder to the mixing vessel to form a powder bed in the mixing vessel comprising the first and second powders. The quantities of the powders are selected so the mixed sample has a predetermined ratio of first powder to second powder. The powder bed is fluidized to mix the powders and produce a mixed sample. The mixed sample weighs about 5 grams or less. The invention also includes apparatus for preparing mixed powder samples by mixing two or more different powders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.